Here's my 135i after winter prep. Washed off Zaino with Dawn. Clayed, washed and reapplied 2 coats of Zaino Z2 (using ZFX Flash Cure Accelerator). I've found the Zaino to not only look awesome on the Tiag, but also hold up remarkably well. The Z2 will last through many hand washes and does a great job protecting the car. Obviously silver is an easy color to take care of. Wish the sun was out...
Resting after a few hours of cat and mouse: